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      1 /*	$NetBSD: nouveau_nvkm_subdev_mmu_memgf100.c,v 1.3 2021/12/19 10:51:58 riastradh Exp $	*/
      2 
      3 /*
      4  * Copyright 2017 Red Hat Inc.
      5  *
      6  * Permission is hereby granted, free of charge, to any person obtaining a
      7  * copy of this software and associated documentation files (the "Software"),
      8  * to deal in the Software without restriction, including without limitation
      9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
     10  * and/or sell copies of the Software, and to permit persons to whom the
     11  * Software is furnished to do so, subject to the following conditions:
     12  *
     13  * The above copyright notice and this permission notice shall be included in
     14  * all copies or substantial portions of the Software.
     15  *
     16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     19  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
     20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
     21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
     22  * OTHER DEALINGS IN THE SOFTWARE.
     23  */
     24 #include <sys/cdefs.h>
     25 __KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_subdev_mmu_memgf100.c,v 1.3 2021/12/19 10:51:58 riastradh Exp $");
     26 
     27 #include "mem.h"
     28 
     29 #include <core/memory.h>
     30 #include <subdev/bar.h>
     31 #include <subdev/fb.h>
     32 
     33 #include <nvif/class.h>
     34 #include <nvif/if900b.h>
     35 #include <nvif/if900d.h>
     36 #include <nvif/unpack.h>
     37 
     38 int
     39 #ifdef __NetBSD__
     40 gf100_mem_map(struct nvkm_mmu *mmu, struct nvkm_memory *memory, void *argv,
     41 	      u32 argc, bus_space_tag_t *ptag, u64 *paddr, u64 *psize,
     42 	      struct nvkm_vma **pvma)
     43 #else
     44 gf100_mem_map(struct nvkm_mmu *mmu, struct nvkm_memory *memory, void *argv,
     45 	      u32 argc, u64 *paddr, u64 *psize, struct nvkm_vma **pvma)
     46 #endif
     47 {
     48 	struct gf100_vmm_map_v0 uvmm = {};
     49 	union {
     50 		struct gf100_mem_map_vn vn;
     51 		struct gf100_mem_map_v0 v0;
     52 	} *args = argv;
     53 	struct nvkm_device *device = mmu->subdev.device;
     54 	struct nvkm_vmm *bar = nvkm_bar_bar1_vmm(device);
     55 	int ret = -ENOSYS;
     56 
     57 	if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) {
     58 		uvmm.ro   = args->v0.ro;
     59 		uvmm.kind = args->v0.kind;
     60 	} else
     61 	if (!(ret = nvif_unvers(ret, &argv, &argc, args->vn))) {
     62 	} else
     63 		return ret;
     64 
     65 	ret = nvkm_vmm_get(bar, nvkm_memory_page(memory),
     66 				nvkm_memory_size(memory), pvma);
     67 	if (ret)
     68 		return ret;
     69 
     70 	ret = nvkm_memory_map(memory, 0, bar, *pvma, &uvmm, sizeof(uvmm));
     71 	if (ret)
     72 		return ret;
     73 
     74 #ifdef __NetBSD__
     75 	*ptag = device->func->resource_tag(device, 1);
     76 #endif
     77 	*paddr = device->func->resource_addr(device, 1) + (*pvma)->addr;
     78 	*psize = (*pvma)->size;
     79 	return 0;
     80 }
     81 
     82 int
     83 gf100_mem_new(struct nvkm_mmu *mmu, int type, u8 page, u64 size,
     84 	      void *argv, u32 argc, struct nvkm_memory **pmemory)
     85 {
     86 	union {
     87 		struct gf100_mem_vn vn;
     88 		struct gf100_mem_v0 v0;
     89 	} *args = argv;
     90 	int ret = -ENOSYS;
     91 	bool contig;
     92 
     93 	if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) {
     94 		contig = args->v0.contig;
     95 	} else
     96 	if (!(ret = nvif_unvers(ret, &argv, &argc, args->vn))) {
     97 		contig = false;
     98 	} else
     99 		return ret;
    100 
    101 	if (mmu->type[type].type & (NVKM_MEM_DISP | NVKM_MEM_COMP))
    102 		type = NVKM_RAM_MM_NORMAL;
    103 	else
    104 		type = NVKM_RAM_MM_MIXED;
    105 
    106 	return nvkm_ram_get(mmu->subdev.device, type, 0x01, page,
    107 			    size, contig, false, pmemory);
    108 }
    109